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This work reports for the preparation of ruthenium oxide (RuO2) nanoparticles directly on flexible substrate coated with gold thin layer. The nano structured electrodes RuO2 nanoparticles were prepared in a solution at low temperature of 40°C. The optimized nanostructured RuO2 on Au coated polyethylene naphthalate (PEN) is prepared using pulse current electrodeposition technique at 10% duty cycle,...
Hybrid materials of carbon nanotubes (CNTs) coated with nickel-cobalt (Ni-Co) oxide nanoparticles were synthesized using electroless plating. Transmission electron microscopy images showed that Ni-Co oxide nanoparticles were dispersively distributed on the external surface of CNTs. The composites of Ni-Co oxides modified CNTs were used as additives of activated carbon to improve the electrochemical...
Nanocomposites of carbon nanotubes (CNTs) coated with nickel-cobalt (Ni-Co) oxide nanoparticles were synthesized using electroless plating. Their morphology and microstructure were investigated by transmission electron microscope (TEM) and X-ray diffraction (XRD), showing that the Ni-Co oxide nanoparticles were uniformly distributed on the outer surface of CNTs and formed nanocrystals. The Ni-Co oxides...
Ordered microporous carbon molecular sieves with high specific area and well-dispersed Pt nanoparticles have been prepared by chemical vapour deposition method. Electrochemical properties were measured, showing the nitrogen-doped carbons exhibited excellent performance as an electrochemical supercapacitor.
In this study, the nano-supercapacitors were electrodeposited the gold/manganese oxides thin film with potassium permanganate and gold chloride solution on ITO substrate. It was deposited for 200 s by potentiostatic method (0.7 V v.s. open circuit). The morphology and the microstructure of the films were examined by SEM (scan electron microscopy). The thickness of the thin films was about 30~100 nm...
Three-dimensional (3D) supercapacitors have been demonstrated using vertically aligned carbon nanotubes (CNT) arrays and electroplated nickel nanoparticles. Two significant achievements have been demonstrated in this work: (1) a unique and reliable vacuum-assisted electroplating methodology for the uniform deposition of nickel nanoparticles on CNTs up to 150 ??m in length, and (2) usage of pseudo...
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